21616075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{293}}^1$

素因数の和:543

約数の個数: 24

約数和(自身を含む): 29091888

約数和(自身を除く): 7475813

約数列:

[1, 5, 13, 25, 65, 227, 293, 325, 1135, 1465, 2951, 3809, 5675, 7325, 14755, 19045, 66511, 73775, 95225, 332555, 864643, 1662775, 4323215, 21616075]

約数ペア:

[(1, 21616075), (5, 4323215), (13, 1662775), (25, 864643), (65, 332555), (227, 95225), (293, 73775), (325, 66511), (1135, 19045), (1465, 14755), (2951, 7325), (3809, 5675)]